Inventor · disambiguated record
John Charles Firm
Also filed as: FIRM JOHN CHARLES
3 granted patents·63 citations·filing 2000–2003
73Inventor score
Files withNORTHROP GRUMMAN CORP3
Top patents by PatentIndex Score
3 records- 0182US6406002B1Portable handrail systemNORTHROP GRUMMAN CORP·Filed 2000·Granted Jun 18, 2002·39 cites·18 claims
- 0264US6722967B1Floating sander deviceNORTHROP GRUMMAN CORP·Filed 2002·Granted Apr 20, 2004·12 cites·17 claims
- 0361US6793567B1Upper outermold line sanderNORTHROP GRUMMAN CORP·Filed 2003·Granted Sep 21, 2004·12 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →